diff --git a/.env.sample b/.env.sample
new file mode 100644
index 0000000..8efc750
--- /dev/null
+++ b/.env.sample
@@ -0,0 +1,5 @@
+# Network
+
+BITCOIN_NETWORK_MAINNET = true
+BITCOIN_NETWORK_TESTNET = true
+BITCOIN_NETWORK_SIGNET = true